Peptide Dose Calculator

GLP-1 pens: use the dose counter, not a click count

Ozempic instructions explicitly say not to count pen clicks. A calculator can scale a number, but it cannot verify how much medicine a pen delivers between its labeled settings.

Find the instructions for your exact pen

  1. Read the medicine name, strength and presentation on the carton.
  2. Use the Instructions for Use supplied with that product. A different pen or strength may have different instructions.
  3. If you cannot select the prescribed dose, ask your pharmacist or prescriber how to proceed.

Why a click ratio is insufficient

Counting to a labeled dose and dividing that count assumes that every intermediate movement delivers an equal, known amount. The arithmetic cannot validate that assumption. Ozempic's instructions tell users to select the prescribed dose using the dose counter and pointer, and explicitly say not to count clicks.

Single-dose and multidose presentations

A single-dose pen delivers its specified dose. A multidose pen contains several doses and has its own selection and flow-check instructions. Current Zepbound labeling includes single-dose pens, vials and a single-patient-use KwikPen. The presence of a dial does not establish that an unmarked dose can be measured.

Ozempic instructions (opens in a new tab) · Zepbound instructions (opens in a new tab)

Correction — November 9, 2026. This page previously offered a click-count calculator and counting instructions. These were removed because a click ratio cannot verify a delivered dose and the Ozempic instructions explicitly say not to count clicks.

Questions

Can this site convert a dose to pen clicks?

No. A proportional calculation does not establish the dose a pen delivers. Use the instructions for your exact product and ask your pharmacist if the prescribed dose cannot be selected.

Are all GLP-1 pens the same?

No. Single-dose autoinjectors and pens containing several doses have different controls and instructions. Identify the product, strength and presentation on your carton.

What if I use a vial instead?

Vials require the concentration and prescribed dose to calculate a volume. The vial calculator converts those numbers into U-100 syringe units. Pen clicks are not syringe units.